CN206755073U - A kind of TIR compound lens based on LED or VCSEL light source generation rectangular light spot - Google Patents
A kind of TIR compound lens based on LED or VCSEL light source generation rectangular light spot Download PDFInfo
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- CN206755073U CN206755073U CN201720398715.6U CN201720398715U CN206755073U CN 206755073 U CN206755073 U CN 206755073U CN 201720398715 U CN201720398715 U CN 201720398715U CN 206755073 U CN206755073 U CN 206755073U
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Abstract
The utility model discloses a kind of TIR compound lens based on LED or VCSEL light source generation rectangular light spot, including lens body, the lens body includes the plane of incidence, side, exit facet and bottom surface, and the exit facet is arranged on the top of side, and bottom surface is located at the bottom of side；Lateral inner is provided with a rectangular recess being made up of the plane of incidence, it is open on bottom surface；And exit facet is cylindrical mirror, its downward projection is rectangle, and the lens body being made up of the plane of incidence, side, exit facet and bottom surface is a truncated rectangular pyramids structure.The lens efficiency of light energy utilization is higher, and evenly, weatherability is strong for Illumination Distribution.
Description
Technical field
A kind of TIR compound lens is the utility model is related to, it is more particularly to a kind of that rectangle is generated based on LED or VCSEL light source
The TIR compound lens of hot spot.
Background technology
With the development of the society, the development of modern industry, the consumption to resource constantly expands, and energy-saving and emission-reduction are into the whole world
Property problem, with the reduction of production cost, the LED or VCSEL of semiconductor devices industry have low energy consumption, long lifespan, green because of it
Colour circle is protected and the features such as cold light illumination, is widely used.A common fault all be present in current various LED or VCSEL lamp beads,
Light can not be controlled in the region for needing to illuminate, and uneven illumination is even in irradiation area, causes shadow surface light efficiency bad, and
And directly result in light pollution and energy waste.
For the industry of many, client wishes that LED or VCSEL lens have high light-emitting efficiency, specific hot spot shape
Shape or rising angle and hot spot are uniform, such as LED street lamp, Tunnel Lamp, Projecting Lamp after secondary optical lens, it is necessary to send
Irradiation hot spot be rectangular light spot, Chinese patent CN201210364042.4, CN200820095648.1,
CN201220108475.9, CN201320571984.X and CN201420379229.6, CN201420844158.2,
CN201520519125.5 is referred to.Although the lens that these patents refer to can produce rectangular light spot or special angle, need
Wanting high-precision free form surface to coordinate, shaping Y and even photo structure are complex, and die cost is higher, to array type arrangement
The advantages that LED or VCSEL position accuracy demands are also high, and its hot spot can not have wide-angle, special ratios, uniformity concurrently, because
This in the market need it is a kind of it is simple in construction, cost is low and can produce wide-angle, the secondary optics of the uniform light spots of specific length-width ratio
Lens.
The content of the invention
The purpose of this utility model is, there is provided a kind of TIR combinations based on LED or VCSEL light source generation rectangular light spot
Lens, the lens efficiency of light energy utilization is higher, and evenly, weatherability is strong for Illumination Distribution.
To achieve the above object, the technical solution adopted in the utility model is, one kind is given birth to based on LED or VCSEL light source
The TIR compound lens of rectangular hot spot, including lens body, the lens body include the plane of incidence, side, exit facet and bottom
Face, the exit facet are arranged on the top of side, and bottom surface is located at the bottom of side；One is provided with by the plane of incidence positioned at lateral inner
The rectangular recess of composition, it is open on bottom surface；And exit facet is cylindrical mirror, its downward projection is rectangle, by the plane of incidence, side
The lens body in face, exit facet and bottom surface composition is a truncated rectangular pyramids structure.
Preferably, the plane of incidence is made up of two parts, i.e. first plane of incidence and second plane of incidence, described first is incident
Face is the bottom surface of rectangular recess, and second plane of incidence is four sides of rectangular recess.
First plane of incidence and second plane of incidence of the plane of incidence can be with refracted lights, through the light of first plane of incidence
The exit facet at top is directed through, produces corresponding rectangular light spot, because LED or VCSEL lamp beads have center bright limb dark
Person's character, make the hot spot that this part generates that similarly there is this feature, this part emergent light is referred to as direct transmission light.
Preferably, the side is made up of two parts, i.e. positioning package face and fully reflecting surface, described positioning package face
For rectangular configuration, fully reflecting surface is surrounded by four planes and formed, and forms top greatly, the small truncated rectangular pyramids shape in bottom, and its top
The four edges with positioning package face are connected respectively.
Positioning package face may insure the accuracy and close with LED or VCSEL lamp beads of lens body installation positioning
Coordinate, can also play a part of water proof and dust proof after dispensing seals.The light of LED or VCSEL lamp beads transmitting is incident from second
After the refraction of face, launch in full transmitting face, then reflected in the exit facet positioned at top, this part emergent light is referred to as
Full transmitting light.
Distribution by full transmitting light can be that center is dark, the bright rectangular light spot in edge, the distribution with direct transmission light on the contrary, because
This two part emergent lights are superimposed after passing through the exit facet at top, produce uniform rectangular light spot.
Preferably, the four edges in the positioning package face protrude from the four edges of fully reflecting surface, this positioning package face is made
For the reference plane for positioning and encapsulating, there is positioning and the function of water proof and dust proof.
Preferably, the lens body is PC, PMMA, ABS or low-melting glass lens so that it is single led or
The rectangular light spot for being projected as illuminance distribution of transmitting light beams of the VCSEL after this lens, the Aspect Ratio of rectangular light spot can
Controlled fully according to being actually needed, the luminous energy of spilling is few, substantially increases the efficiency of light energy utilization.
The beneficial effects of the utility model：
(1) rectangular light spot lens of the present utility model can effectively control the flood rate of light, and LED or VCSEL are sent
Light is farthest shaped into the rectangular area for needing most luminous energy, and can take into account hot spot uniformity；
(2) TIR compound lens is formed using common cylinder and oblique full transmitting face, it is not necessary to high-precision freely bent
Face, its mould are easier processing and fabricating, reach the purpose of low cost production；
(3) preferably, insensitive to the die size and distribution curve flux of lamp bead, the lamp bead of same type can lead to compatibility substantially
With, improve lamp bead selection the free degree；
(4) hot spot with big launch angle can be produced, with corresponding shots match, realizes not only efficient but also uniformly illumination
Or pulsed optical signals generator corresponding to being used as uses；
(5) small volume, it is adapted to the occasion of a variety of volume requirements.
Brief description of the drawings
, below will be to institute in embodiment or description of the prior art in order to illustrate more clearly of the technical solution of the utility model
The accompanying drawing needed to use is briefly described.
Fig. 1 is structural representation of the present utility model；
Fig. 2 is Fig. 1 upward view；
Fig. 3 be Fig. 1 in A-A to cross-sectional view；
Fig. 4 is the cross-sectional view of B-B direction in Fig. 1；
In figure：1. the plane of incidence, the planes of incidence of 1-1. first, the planes of incidence of 1-2. second, 2. sides, 2-1. positioning packages face, 2-
2. fully reflecting surface, 3. exit facets, 4. bottom surfaces.
Embodiment
In order that those skilled in the art more fully understand the technical scheme in the application, below in conjunction with embodiment pair
Technical scheme in the application is clearly and completely described.
As shown in Figures 1 to 4, the utility model discloses a kind of TIR based on LED or VCSEL light source generation rectangular light spot
Compound lens, including lens body, the lens body include the plane of incidence 1, side 2, exit facet 3 and bottom surface 4, the exit facet
3 are arranged on the top of side 2, and bottom surface 4 is located at the bottom of side, and a square being made up of the plane of incidence 1 is internally provided with positioned at side 2
Connected in star, it is open on bottom surface 4；And exit facet 3 is cylindrical mirror, its downward projection is rectangle, by the plane of incidence 1, side 2,
The lens body that exit facet 3 and bottom surface 4 form is a truncated rectangular pyramids structure.
The plane of incidence 1 is made up of two parts, i.e. the first plane of incidence 1-1 and the second plane of incidence 1-2, first plane of incidence
1-1 is the bottom surface of rectangular recess, and second plane of incidence is four sides of rectangular recess.
First plane of incidence and second plane of incidence of the plane of incidence can be with refracted lights, through the light of first plane of incidence
The exit facet at top is directed through, produces corresponding rectangular light spot, because LED or VCSEL lamp beads have center bright limb dark
Person's character, make the hot spot that this part generates that similarly there is this feature, this part emergent light is referred to as direct transmission light.
The side is made up of two parts, i.e. positioning package face and fully reflecting surface, and described positioning package face is rectangle knot
Structure, fully reflecting surface are formed by four planes encirclements, form top greatly, the small truncated rectangular pyramids shape in bottom, and its top is respectively with determining
The four edges connection of position encapsulating face.
Positioning package face may insure the accuracy and close with LED or VCSEL lamp beads of lens body installation positioning
Coordinate, can also play a part of water proof and dust proof after dispensing seals.The light of LED or VCSEL lamp beads transmitting is incident from second
After the refraction of face, launch in full transmitting face, then reflected in the exit facet positioned at top, this part emergent light is referred to as
Full transmitting light.
Distribution by full transmitting light can be that center is dark, the bright rectangular light spot in edge, the distribution with direct transmission light on the contrary, because
This two part emergent lights are superimposed after passing through the exit facet at top, produce uniform rectangular light spot.
The four edges in the positioning package face protrude from the four edges of fully reflecting surface, and this positioning package face is as positioning and envelope
The reference plane of dress, there is the function of positioning and water proof and dust proof.
The lens body is PC, PMMA, ABS or low-melting glass lens so that single led or VCSEL is saturating through this
The rectangular light spot for being projected as illuminance distribution of transmitting light beam after mirror, the Aspect Ratio of rectangular light spot can be fully according to reality
Need to control, the luminous energy of spilling is few, substantially increases the efficiency of light energy utilization.
Said lens structure gives the advantage that：(1) rectangular light spot lens of the present utility model can effectively control light
Flood rate, the light that LED or VCSEL are sent farthest is shaped into the rectangular area for needing most luminous energy, and can take into account light
Spot uniformity；
(2) TIR compound lens is formed using common cylinder and oblique fully reflecting surface, it is not necessary to high-precision freely bent
Face, its mould are easier processing and fabricating, reach the purpose of low cost production；
(3) preferably, insensitive to the die size and distribution curve flux of lamp bead, the lamp bead of same type can lead to compatibility substantially
With, improve selection lamp bead the free degree；
(4) hot spot with big launch angle can be produced, with corresponding shots match, realizes not only efficient but also uniformly illumination
Or pulsed optical signals generator corresponding to being used as uses；
(5) small volume, it is adapted to the occasion of a variety of volume requirements.
Described embodiment is part of the embodiment of the present invention, rather than whole embodiments.Based in the present invention
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made,
Belong to the scope of protection of the invention.
Claims (5)
1. a kind of TIR compound lens based on LED or VCSEL light source generation rectangular light spot, including lens body, its feature exist
In the lens body includes the plane of incidence (1), side (2), exit facet (3) and bottom surface (4), the exit facet (3) and is arranged on side
The top in face (2), bottom surface (4) are located at the bottom of side (2)；One is internally provided with positioned at side (2) to be made up of the plane of incidence (1)
Rectangular recess, it is open on bottom surface (4)；And exit facet (3) is cylindrical mirror, its downward projection is rectangle, by the plane of incidence
(1), the lens body of side (2), exit facet (3) and bottom surface (4) composition is a truncated rectangular pyramids structure.
2. the TIR compound lens according to claim 1 based on LED or VCSEL light source generation rectangular light spot, its feature exist
In the plane of incidence (1) is made up of two parts, i.e. first plane of incidence (1-1) and second plane of incidence (1-2), and described first is incident
Face (1-1) is the bottom surface of rectangular recess, and second plane of incidence (1-2) is four sides of rectangular recess.
3. the TIR compound lens according to claim 2 based on LED or VCSEL light source generation rectangular light spot, its feature exist
In the side (2) is made up of two parts, i.e. positioning package face (2-1) and fully reflecting surface (2-2), described positioning package face
(2-1) is rectangular configuration, and fully reflecting surface (2-2) is surrounded by four planes and formed, and forms top greatly, the small truncated rectangular pyramids shape in bottom
Shape, and its four edges of top respectively with positioning package face (2-1) is connected.
4. the TIR compound lens according to claim 3 based on LED or VCSEL light source generation rectangular light spot, its feature exist
In the four edges of the positioning package face (2-1) protrude from fully reflecting surface (2-2) four edges.
5. the TIR compound lens according to claim 1 based on LED or VCSEL light source generation rectangular light spot, its feature exist
In the lens body is PC, PMMA, ABS or low-melting glass lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720398715.6U CN206755073U (en) | 2017-04-17 | 2017-04-17 | A kind of TIR compound lens based on LED or VCSEL light source generation rectangular light spot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720398715.6U CN206755073U (en) | 2017-04-17 | 2017-04-17 | A kind of TIR compound lens based on LED or VCSEL light source generation rectangular light spot |
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| Publication Number | Publication Date |
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| CN206755073U true CN206755073U (en) | 2017-12-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720398715.6U Active CN206755073U (en) | 2017-04-17 | 2017-04-17 | A kind of TIR compound lens based on LED or VCSEL light source generation rectangular light spot |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111609378A (en) * | 2019-02-25 | 2020-09-01 | 浙江宇视科技有限公司 | Light filling lens and camera equipment |
| WO2020244378A1 (en) * | 2019-06-03 | 2020-12-10 | 青岛海信激光显示股份有限公司 | Laser projection device |
-
2017
- 2017-04-17 CN CN201720398715.6U patent/CN206755073U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111609378A (en) * | 2019-02-25 | 2020-09-01 | 浙江宇视科技有限公司 | Light filling lens and camera equipment |
| WO2020244378A1 (en) * | 2019-06-03 | 2020-12-10 | 青岛海信激光显示股份有限公司 | Laser projection device |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 518000 Floor 1, Building E, Huafeng International Robot Industrial Park, Nanchang Community Avenue, Xixiang Street, Baoan District, Shenzhen City, Guangdong Province Patentee after: Hebson Technology (Shenzhen) Co., Ltd. Address before: 518100 Guangdong city of Shenzhen province Baoan District Xixiang Street Silver Road No. 4 wisdom Valley Science and Technology Park A building room 526 Patentee before: Hebson Technology (Shenzhen) Co., Ltd. |
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